| 摘要: |
| 【目的】 研究复合维生素纳米乳对肉仔鸡生产性能和免疫力的影响。【方法】 选用1日龄爱拔益加（AA）肉仔鸡400只，随机分为4组，每组5个重复，每个重复20只鸡(公母各半)。在基础日粮相同的前提下，研究不含（对照组）或含有稀释1 000倍（Ⅰ组）、2 000倍（Ⅱ组）、5 000倍（Ⅲ组）3个剂量复合维生素纳米乳的饮水，对肉仔鸡不同生长阶段生产性能和免疫力的影响。【结果】 与对照组相比，试验Ⅰ组鸡死淘率、料质量比降低，出栏质量增加，差异均显著（P<0.05）；试验Ⅰ组鸡血清中白蛋白含量和碱性磷酸酶活性显著（P<0.05）高于对照组，各试验组总胆固醇、甘油三酯含量与对照组相比下降，但差异不显著（P>0.05）；各组之间新城疫HI滴度差异不显著（P>0.05），试验Ⅰ组T淋巴细胞比例显著（P<0.05）高于对照组；各试验组半净膛率显著（P<0.05）高于对照组，全净膛率、胸肌率、腿肌率和瘦肉率仅试验Ⅰ、Ⅱ组显著（P<0.05）高于对照组；试验Ⅰ组鸡腿肌的红度显著（P<0.05）低于对照组，黄度、亮度显著（P<0.05）高于对照组；各组之间免疫器官指数差异不显著（P>0.05）。【结论】 复合维生素纳米乳可在一定程度上提高肉鸡的生产性能和免疫力，在养殖业中具有广泛的应用前景。 |
| 关键词: 肉仔鸡 复合维生素纳米乳 生产性能 免疫力 |
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| 基金项目:陕西省科技攻关项目（2008K02-01） |
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| Effects of composite vitamin nanoemulsion on growth performance and immunity in broilers |
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| Abstract: |
| 【Objective】The research was to study the effects of composite vitamin nanoemulsion on growth performance and immunity of broilers.【Method】Four hundred one-day-old Arbor Acres chickens were randomly grouped to four treatments consisting of five replicates of 20 chicks（half male and half female）.On the basis of basal diet,we-studied the effects of drinking water without (control) composite vitamin nanoemulsion and with three dosages of composite vitamin nanoemulsion of 1 000 times(Ⅰ),2 000 times(Ⅱ),5 000 times(Ⅲ) dilute solution on growth performance and immunity in broilers.【Result】The results showed that in the Ⅰ group the number of dead chickens and feed/gain decreased and slaughter weight increased,and there were significant differences (P<0.05);Serum albumin and alkaline phosphatase levels in the Ⅰ group were siginificantly higher (P<0.05) than that in control group,and the total cholesterol and triglyceride content in every test group decreased compared with the control group,but the difference was not significant (P>0.05);ND HI titers had no significant difference (P>0.05) in every group,T-lymphocyte percentage in the Ⅰ group were significantly (P<0.05) higher compared with that of the control group;Semi eviscerated percent in every test group was higher than that of the control group,and there were significant difference (P<0.05);Full-eviscerated percent,pectoral rate,thigh rate and muscle rate in the Ⅰ and Ⅱ groups were significantly (P<0.05) higher than those of the control group;In group Ⅰ the redness of chicken was significantly (P<0.05) lower and the yellowness and brightness were significantly (P<0.05) higher than that of the control group;The immune organ index had no significant difference (P>0.05) in every group.【Conclusion】To some extent,composite vitamin nanoemulsion can be used to increase the growth performance and immunity in broiler,and it has a wide range of application prospect in the aquaculture industry. |
| Key words: broiler composite vitamin nanoemulsion growth performance immunity ability |
